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File Name : plugin_script.py

import tuned.consts as consts
from . import base
import tuned.logs
import os
from subprocess import Popen, PIPE

log = tuned.logs.get()

class ScriptPlugin(base.Plugin):
	"""
	Executes an external script or binary when the profile is loaded or
	unloaded. You can choose an arbitrary executable.

IMPORTANT: The `script` plug-in is provided mainly for compatibility
	with earlier releases. Prefer other *TuneD* plug-ins if they cover
	the required functionality.

*TuneD* calls the executable with one of the following arguments:

* `start` when loading the profile
	* `stop` when unloading the profile

You need to correctly implement the `stop` action in your executable
	and revert all settings that you changed during the `start`
	action. Otherwise, the roll-back step after changing your *TuneD*
	profile will not work.

Bash scripts can import the [filename]`/usr/lib/tuned/functions`
	Bash library and use the functions defined there. Use these
	functions only for functionality that is not natively provided
	by *TuneD*. If a function name starts with an underscore, such as
	`_wifi_set_power_level`, consider the function private and do not
	use it in your scripts, because it might change in the future.

Specify the path to the executable using the `script` parameter in
	the plug-in configuration.

.Running a Bash script from a profile
	====
	To run a Bash script named `script.sh` that is located in the profile
	directory, use:
	----
	[script]
	script=${i:PROFILE_DIR}/script.sh
	----
	====
	"""

@classmethod
	def _get_config_options(self):
		return {
			"script" : None,
		}

def _instance_init(self, instance):
		instance._has_static_tuning = True
		instance._has_dynamic_tuning = False
		if instance.options["script"] is not None:
			# FIXME: this hack originated from profiles merger
			assert isinstance(instance.options["script"], list)
			instance._scripts = instance.options["script"]
		else:
			instance._scripts = []

def _instance_cleanup(self, instance):
		pass

def _call_scripts(self, scripts, arguments):
		ret = True
		for script in scripts:
			environ = os.environ
			environ.update(self._variables.get_env())
			if not self._safe_script_path(script):
				log.error("Paths outside of the profile directories cannot be used in the script, " \
					+ "ignoring script: '%s'." % script)
				continue
			log.info("calling script '%s' with arguments '%s'" % (script, str(arguments)))
			log.debug("using environment '%s'" % str(list(environ.items())))
			try:
				proc = Popen([script] +  arguments, \
						stdout=PIPE, stderr=PIPE, \
						close_fds=True, env=environ, \
						universal_newlines = True, \
						cwd = os.path.dirname(script))
				out, err = proc.communicate()
				if len(err):
					log.error("script '%s' error output: '%s'" % (script, err[:-1]))
				if proc.returncode:
					log.error("script '%s' returned error code: %d" % (script, proc.returncode))
					ret = False
			except (OSError,IOError) as e:
				log.error("script '%s' error: %s" % (script, e))
				ret = False
		return ret

def _instance_apply_static(self, instance):
		super(ScriptPlugin, self)._instance_apply_static(instance)
		self._call_scripts(instance._scripts, ["start"])

def _instance_verify_static(self, instance, ignore_missing, devices):
		ret = True
		if super(ScriptPlugin, self)._instance_verify_static(instance,
				ignore_missing, devices) == False:
			ret = False
		args = ["verify"]
		if ignore_missing:
			args += ["ignore_missing"]
		if self._call_scripts(instance._scripts, args) == True:
			log.info(consts.STR_VERIFY_PROFILE_OK % instance._scripts)
		else:
			log.error(consts.STR_VERIFY_PROFILE_FAIL % instance._scripts)
			ret = False
		return ret

def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
		args = ["stop"]
		if rollback == consts.ROLLBACK_FULL:
			args = args + ["full_rollback"]
		self._call_scripts(reversed(instance._scripts), args)
		super(ScriptPlugin, self)._instance_unapply_static(instance, rollback)

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	drwxr-xr-x	2025-12-14 03:10:28
..	dir	-	root/root	drwxr-xr-x	2025-12-14 03:10:28
__pycache__	dir	-	root/root	drwxr-xr-x	2025-12-14 03:10:28
instance	dir	-	root/root	drwxr-xr-x	2025-12-14 03:10:28
__init__.py	text/x-python	49 B	root/root	-rw-r--r--	2025-08-25 04:48:04
base.py	text/x-python	22.76 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
decorators.py	text/x-python	983 B	root/root	-rw-r--r--	2025-08-25 04:48:04
exceptions.py	text/x-python	99 B	root/root	-rw-r--r--	2025-08-25 04:48:04
hotplug.py	text/x-python	4.62 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_acpi.py	text/x-python	2.39 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_audio.py	text/x-python	3.16 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_bootloader.py	text/x-python	24.86 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_cpu.py	text/x-python	30.58 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_disk.py	text/x-python	16.77 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_eeepc_she.py	text/x-python	3 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_irq.py	text/x-python	9.73 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_irqbalance.py	text/x-python	3.54 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_modules.py	text/x-python	4.8 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_mounts.py	text/x-python	5.44 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_net.py	text/x-python	26.38 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_rtentsk.py	text/x-python	1.12 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_scheduler.py	text/x-python	58.48 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_script.py	text/x-python	3.91 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_scsi_host.py	text/x-python	3.89 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_selinux.py	text/x-python	2.26 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_service.py	text/x-python	10.45 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_sysctl.py	text/x-python	6.01 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_sysfs.py	text/x-python	2.63 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_systemd.py	text/x-python	5.32 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_uncore.py	text/x-python	5.97 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_usb.py	text/x-python	1.97 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_video.py	text/x-python	5.97 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
plugin_vm.py	text/x-python	8.67 KB	root/root	-rw-r--r--	2025-08-25 04:48:04
repository.py	text/x-python	1.49 KB	root/root	-rw-r--r--	2025-08-25 04:48:04